console: Add set_active callback

The netconsole needs to be able to deny activation when the network
has not been enabled. Add an optional callback to the console for
this.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/common/console.c b/common/console.c
index e5f4267cbd..c092621aa1 100644
--- a/common/console.c
+++ b/common/console.c
@@ -64,6 +64,7 @@ static int console_std_set(struct device_d *dev, struct param_d *param,
 	struct console_device *cdev = to_console_dev(dev);
 	char active[4];
 	unsigned int flag = 0, i = 0;
+	int ret;
 
 	if (val) {
 		if (strchr(val, 'i') && cdev->getc) {
@@ -90,6 +91,12 @@ static int console_std_set(struct device_d *dev, struct param_d *param,
 			cdev->setbrg(cdev, cdev->baudrate);
 	}
 
+	if (cdev->set_active) {
+		ret = cdev->set_active(cdev, flag);
+		if (ret)
+			return ret;
+	}
+
 	active[i] = 0;
 	cdev->f_active = flag;